Kconfig 16 KB

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  1. #
  2. # For a description of the syntax of this configuration file,
  3. # see Documentation/kbuild/kconfig-language.txt.
  4. #
  5. mainmenu "Linux/SuperH Kernel Configuration"
  6. config SUPERH
  7. def_bool y
  8. select EMBEDDED
  9. select HAVE_CLK
  10. select HAVE_IDE
  11. select HAVE_OPROFILE
  12. select HAVE_GENERIC_DMA_COHERENT
  13. select HAVE_IOREMAP_PROT if MMU
  14. select HAVE_ARCH_TRACEHOOK
  15. help
  16. The SuperH is a RISC processor targeted for use in embedded systems
  17. and consumer electronics; it was also used in the Sega Dreamcast
  18. gaming console. The SuperH port has a home page at
  19. <http://www.linux-sh.org/>.
  20. config SUPERH32
  21. def_bool !SUPERH64
  22. select HAVE_KPROBES
  23. select HAVE_KRETPROBES
  24. select HAVE_FUNCTION_TRACER
  25. select HAVE_FTRACE_MCOUNT_RECORD
  26. select HAVE_DYNAMIC_FTRACE
  27. select HAVE_ARCH_KGDB
  28. config SUPERH64
  29. def_bool y if CPU_SH5
  30. config ARCH_DEFCONFIG
  31. string
  32. default "arch/sh/configs/shx3_defconfig" if SUPERH32
  33. default "arch/sh/configs/cayman_defconfig" if SUPERH64
  34. config RWSEM_GENERIC_SPINLOCK
  35. def_bool y
  36. config RWSEM_XCHGADD_ALGORITHM
  37. bool
  38. config GENERIC_BUG
  39. def_bool y
  40. depends on BUG && SUPERH32
  41. config GENERIC_FIND_NEXT_BIT
  42. def_bool y
  43. config GENERIC_HWEIGHT
  44. def_bool y
  45. config GENERIC_HARDIRQS
  46. def_bool y
  47. config GENERIC_HARDIRQS_NO__DO_IRQ
  48. def_bool y
  49. config GENERIC_IRQ_PROBE
  50. def_bool y
  51. config GENERIC_GPIO
  52. def_bool n
  53. config GENERIC_CALIBRATE_DELAY
  54. bool
  55. config GENERIC_IOMAP
  56. bool
  57. config GENERIC_TIME
  58. def_bool n
  59. config GENERIC_CLOCKEVENTS
  60. def_bool n
  61. config GENERIC_CLOCKEVENTS_BROADCAST
  62. bool
  63. config GENERIC_LOCKBREAK
  64. def_bool y
  65. depends on SMP && PREEMPT
  66. config SYS_SUPPORTS_PM
  67. bool
  68. depends on !SMP
  69. config ARCH_SUSPEND_POSSIBLE
  70. def_bool n
  71. config ARCH_HIBERNATION_POSSIBLE
  72. def_bool n
  73. config SYS_SUPPORTS_APM_EMULATION
  74. bool
  75. select ARCH_SUSPEND_POSSIBLE
  76. config SYS_SUPPORTS_SMP
  77. bool
  78. config SYS_SUPPORTS_NUMA
  79. bool
  80. config SYS_SUPPORTS_PCI
  81. bool
  82. config SYS_SUPPORTS_CMT
  83. bool
  84. config STACKTRACE_SUPPORT
  85. def_bool y
  86. config LOCKDEP_SUPPORT
  87. def_bool y
  88. config HAVE_LATENCYTOP_SUPPORT
  89. def_bool y
  90. depends on !SMP
  91. config ARCH_HAS_ILOG2_U32
  92. def_bool n
  93. config ARCH_HAS_ILOG2_U64
  94. def_bool n
  95. config ARCH_NO_VIRT_TO_BUS
  96. def_bool y
  97. config IO_TRAPPED
  98. bool
  99. source "init/Kconfig"
  100. source "kernel/Kconfig.freezer"
  101. menu "System type"
  102. #
  103. # Processor families
  104. #
  105. config CPU_SH2
  106. bool
  107. config CPU_SH2A
  108. bool
  109. select CPU_SH2
  110. config CPU_SH3
  111. bool
  112. select CPU_HAS_INTEVT
  113. select CPU_HAS_SR_RB
  114. config CPU_SH4
  115. bool
  116. select CPU_HAS_INTEVT
  117. select CPU_HAS_SR_RB
  118. select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
  119. select CPU_HAS_FPU if !CPU_SH4AL_DSP
  120. config CPU_SH4A
  121. bool
  122. select CPU_SH4
  123. config CPU_SH4AL_DSP
  124. bool
  125. select CPU_SH4A
  126. select CPU_HAS_DSP
  127. config CPU_SH5
  128. bool
  129. select CPU_HAS_FPU
  130. config CPU_SHX2
  131. bool
  132. config CPU_SHX3
  133. bool
  134. choice
  135. prompt "Processor sub-type selection"
  136. #
  137. # Processor subtypes
  138. #
  139. # SH-2 Processor Support
  140. config CPU_SUBTYPE_SH7619
  141. bool "Support SH7619 processor"
  142. select CPU_SH2
  143. select SYS_SUPPORTS_CMT
  144. # SH-2A Processor Support
  145. config CPU_SUBTYPE_SH7201
  146. bool "Support SH7201 processor"
  147. select CPU_SH2A
  148. select CPU_HAS_FPU
  149. config CPU_SUBTYPE_SH7203
  150. bool "Support SH7203 processor"
  151. select CPU_SH2A
  152. select CPU_HAS_FPU
  153. select SYS_SUPPORTS_CMT
  154. config CPU_SUBTYPE_SH7206
  155. bool "Support SH7206 processor"
  156. select CPU_SH2A
  157. select SYS_SUPPORTS_CMT
  158. config CPU_SUBTYPE_SH7263
  159. bool "Support SH7263 processor"
  160. select CPU_SH2A
  161. select CPU_HAS_FPU
  162. select SYS_SUPPORTS_CMT
  163. config CPU_SUBTYPE_MXG
  164. bool "Support MX-G processor"
  165. select CPU_SH2A
  166. help
  167. Select MX-G if running on an R8A03022BG part.
  168. # SH-3 Processor Support
  169. config CPU_SUBTYPE_SH7705
  170. bool "Support SH7705 processor"
  171. select CPU_SH3
  172. config CPU_SUBTYPE_SH7706
  173. bool "Support SH7706 processor"
  174. select CPU_SH3
  175. help
  176. Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
  177. config CPU_SUBTYPE_SH7707
  178. bool "Support SH7707 processor"
  179. select CPU_SH3
  180. help
  181. Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
  182. config CPU_SUBTYPE_SH7708
  183. bool "Support SH7708 processor"
  184. select CPU_SH3
  185. help
  186. Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
  187. if you have a 100 Mhz SH-3 HD6417708R CPU.
  188. config CPU_SUBTYPE_SH7709
  189. bool "Support SH7709 processor"
  190. select CPU_SH3
  191. help
  192. Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
  193. config CPU_SUBTYPE_SH7710
  194. bool "Support SH7710 processor"
  195. select CPU_SH3
  196. select CPU_HAS_DSP
  197. help
  198. Select SH7710 if you have a SH3-DSP SH7710 CPU.
  199. config CPU_SUBTYPE_SH7712
  200. bool "Support SH7712 processor"
  201. select CPU_SH3
  202. select CPU_HAS_DSP
  203. help
  204. Select SH7712 if you have a SH3-DSP SH7712 CPU.
  205. config CPU_SUBTYPE_SH7720
  206. bool "Support SH7720 processor"
  207. select CPU_SH3
  208. select CPU_HAS_DSP
  209. help
  210. Select SH7720 if you have a SH3-DSP SH7720 CPU.
  211. config CPU_SUBTYPE_SH7721
  212. bool "Support SH7721 processor"
  213. select CPU_SH3
  214. select CPU_HAS_DSP
  215. help
  216. Select SH7721 if you have a SH3-DSP SH7721 CPU.
  217. # SH-4 Processor Support
  218. config CPU_SUBTYPE_SH7750
  219. bool "Support SH7750 processor"
  220. select CPU_SH4
  221. help
  222. Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
  223. config CPU_SUBTYPE_SH7091
  224. bool "Support SH7091 processor"
  225. select CPU_SH4
  226. help
  227. Select SH7091 if you have an SH-4 based Sega device (such as
  228. the Dreamcast, Naomi, and Naomi 2).
  229. config CPU_SUBTYPE_SH7750R
  230. bool "Support SH7750R processor"
  231. select CPU_SH4
  232. config CPU_SUBTYPE_SH7750S
  233. bool "Support SH7750S processor"
  234. select CPU_SH4
  235. config CPU_SUBTYPE_SH7751
  236. bool "Support SH7751 processor"
  237. select CPU_SH4
  238. help
  239. Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
  240. or if you have a HD6417751R CPU.
  241. config CPU_SUBTYPE_SH7751R
  242. bool "Support SH7751R processor"
  243. select CPU_SH4
  244. config CPU_SUBTYPE_SH7760
  245. bool "Support SH7760 processor"
  246. select CPU_SH4
  247. config CPU_SUBTYPE_SH4_202
  248. bool "Support SH4-202 processor"
  249. select CPU_SH4
  250. # SH-4A Processor Support
  251. config CPU_SUBTYPE_SH7723
  252. bool "Support SH7723 processor"
  253. select CPU_SH4A
  254. select CPU_SHX2
  255. select ARCH_SPARSEMEM_ENABLE
  256. select SYS_SUPPORTS_CMT
  257. help
  258. Select SH7723 if you have an SH-MobileR2 CPU.
  259. config CPU_SUBTYPE_SH7763
  260. bool "Support SH7763 processor"
  261. select CPU_SH4A
  262. help
  263. Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
  264. config CPU_SUBTYPE_SH7770
  265. bool "Support SH7770 processor"
  266. select CPU_SH4A
  267. config CPU_SUBTYPE_SH7780
  268. bool "Support SH7780 processor"
  269. select CPU_SH4A
  270. config CPU_SUBTYPE_SH7785
  271. bool "Support SH7785 processor"
  272. select CPU_SH4A
  273. select CPU_SHX2
  274. select ARCH_SPARSEMEM_ENABLE
  275. select SYS_SUPPORTS_NUMA
  276. config CPU_SUBTYPE_SHX3
  277. bool "Support SH-X3 processor"
  278. select CPU_SH4A
  279. select CPU_SHX3
  280. select ARCH_SPARSEMEM_ENABLE
  281. select SYS_SUPPORTS_NUMA
  282. select SYS_SUPPORTS_SMP
  283. select GENERIC_CLOCKEVENTS_BROADCAST if SMP
  284. # SH4AL-DSP Processor Support
  285. config CPU_SUBTYPE_SH7343
  286. bool "Support SH7343 processor"
  287. select CPU_SH4AL_DSP
  288. select SYS_SUPPORTS_CMT
  289. config CPU_SUBTYPE_SH7722
  290. bool "Support SH7722 processor"
  291. select CPU_SH4AL_DSP
  292. select CPU_SHX2
  293. select ARCH_SPARSEMEM_ENABLE
  294. select SYS_SUPPORTS_NUMA
  295. select SYS_SUPPORTS_CMT
  296. config CPU_SUBTYPE_SH7366
  297. bool "Support SH7366 processor"
  298. select CPU_SH4AL_DSP
  299. select CPU_SHX2
  300. select ARCH_SPARSEMEM_ENABLE
  301. select SYS_SUPPORTS_NUMA
  302. select SYS_SUPPORTS_CMT
  303. # SH-5 Processor Support
  304. config CPU_SUBTYPE_SH5_101
  305. bool "Support SH5-101 processor"
  306. select CPU_SH5
  307. config CPU_SUBTYPE_SH5_103
  308. bool "Support SH5-103 processor"
  309. select CPU_SH5
  310. endchoice
  311. source "arch/sh/mm/Kconfig"
  312. source "arch/sh/Kconfig.cpu"
  313. source "arch/sh/boards/Kconfig"
  314. menu "Timer and clock configuration"
  315. config SH_TMU
  316. bool "TMU timer support"
  317. depends on CPU_SH3 || CPU_SH4
  318. default y
  319. select GENERIC_TIME
  320. select GENERIC_CLOCKEVENTS
  321. help
  322. This enables the use of the TMU as the system timer.
  323. config SH_CMT
  324. bool "CMT timer support"
  325. depends on SYS_SUPPORTS_CMT
  326. default y
  327. help
  328. This enables the use of the CMT as the system timer.
  329. #
  330. # Support for the new-style CMT driver. This will replace SH_CMT
  331. # once its other dependencies are merged.
  332. #
  333. config SH_TIMER_CMT
  334. bool "CMT clockevents driver"
  335. depends on SYS_SUPPORTS_CMT && !SH_CMT
  336. select GENERIC_CLOCKEVENTS
  337. config SH_MTU2
  338. bool "MTU2 timer support"
  339. depends on CPU_SH2A
  340. default y
  341. help
  342. This enables the use of the MTU2 as the system timer.
  343. config SH_TIMER_IRQ
  344. int
  345. default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
  346. CPU_SUBTYPE_SH7763
  347. default "86" if CPU_SUBTYPE_SH7619
  348. default "140" if CPU_SUBTYPE_SH7206
  349. default "142" if CPU_SUBTYPE_SH7203 && SH_CMT
  350. default "153" if CPU_SUBTYPE_SH7203 && SH_MTU2
  351. default "238" if CPU_SUBTYPE_MXG
  352. default "16"
  353. config SH_PCLK_FREQ
  354. int "Peripheral clock frequency (in Hz)"
  355. default "27000000" if CPU_SUBTYPE_SH7343
  356. default "31250000" if CPU_SUBTYPE_SH7619
  357. default "32000000" if CPU_SUBTYPE_SH7722
  358. default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \
  359. CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
  360. CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
  361. CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG
  362. default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
  363. default "66000000" if CPU_SUBTYPE_SH4_202
  364. default "50000000"
  365. help
  366. This option is used to specify the peripheral clock frequency.
  367. This is necessary for determining the reference clock value on
  368. platforms lacking an RTC.
  369. config SH_CLK_MD
  370. int "CPU Mode Pin Setting"
  371. depends on CPU_SH2
  372. default 6 if CPU_SUBTYPE_SH7206
  373. default 5 if CPU_SUBTYPE_SH7619
  374. default 0
  375. help
  376. MD2 - MD0 pin setting.
  377. source "kernel/time/Kconfig"
  378. endmenu
  379. menu "CPU Frequency scaling"
  380. source "drivers/cpufreq/Kconfig"
  381. config SH_CPU_FREQ
  382. tristate "SuperH CPU Frequency driver"
  383. depends on CPU_FREQ
  384. select CPU_FREQ_TABLE
  385. help
  386. This adds the cpufreq driver for SuperH. Any CPU that supports
  387. clock rate rounding through the clock framework can use this
  388. driver. While it will make the kernel slightly larger, this is
  389. harmless for CPUs that don't support rate rounding. The driver
  390. will also generate a notice in the boot log before disabling
  391. itself if the CPU in question is not capable of rate rounding.
  392. For details, take a look at <file:Documentation/cpu-freq>.
  393. If unsure, say N.
  394. endmenu
  395. source "arch/sh/drivers/Kconfig"
  396. endmenu
  397. menu "Kernel features"
  398. source kernel/Kconfig.hz
  399. config KEXEC
  400. bool "kexec system call (EXPERIMENTAL)"
  401. depends on SUPERH32 && EXPERIMENTAL
  402. help
  403. kexec is a system call that implements the ability to shutdown your
  404. current kernel, and to start another kernel. It is like a reboot
  405. but it is independent of the system firmware. And like a reboot
  406. you can start any kernel with it, not just Linux.
  407. The name comes from the similarity to the exec system call.
  408. It is an ongoing process to be certain the hardware in a machine
  409. is properly shutdown, so do not be surprised if this code does not
  410. initially work for you. It may help to enable device hotplugging
  411. support. As of this writing the exact hardware interface is
  412. strongly in flux, so no good recommendation can be made.
  413. config CRASH_DUMP
  414. bool "kernel crash dumps (EXPERIMENTAL)"
  415. depends on SUPERH32 && EXPERIMENTAL
  416. help
  417. Generate crash dump after being started by kexec.
  418. This should be normally only set in special crash dump kernels
  419. which are loaded in the main kernel with kexec-tools into
  420. a specially reserved region and then later executed after
  421. a crash by kdump/kexec. The crash dump kernel must be compiled
  422. to a memory address not used by the main kernel using
  423. MEMORY_START.
  424. For more details see Documentation/kdump/kdump.txt
  425. config SECCOMP
  426. bool "Enable seccomp to safely compute untrusted bytecode"
  427. depends on PROC_FS
  428. help
  429. This kernel feature is useful for number crunching applications
  430. that may need to compute untrusted bytecode during their
  431. execution. By using pipes or other transports made available to
  432. the process as file descriptors supporting the read/write
  433. syscalls, it's possible to isolate those applications in
  434. their own address space using seccomp. Once seccomp is
  435. enabled via prctl, it cannot be disabled and the task is only
  436. allowed to execute a few safe syscalls defined by each seccomp
  437. mode.
  438. If unsure, say N.
  439. config SMP
  440. bool "Symmetric multi-processing support"
  441. depends on SYS_SUPPORTS_SMP
  442. select USE_GENERIC_SMP_HELPERS
  443. ---help---
  444. This enables support for systems with more than one CPU. If you have
  445. a system with only one CPU, like most personal computers, say N. If
  446. you have a system with more than one CPU, say Y.
  447. If you say N here, the kernel will run on single and multiprocessor
  448. machines, but will use only one CPU of a multiprocessor machine. If
  449. you say Y here, the kernel will run on many, but not all,
  450. singleprocessor machines. On a singleprocessor machine, the kernel
  451. will run faster if you say N here.
  452. People using multiprocessor machines who say Y here should also say
  453. Y to "Enhanced Real Time Clock Support", below.
  454. See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
  455. available at <http://www.tldp.org/docs.html#howto>.
  456. If you don't know what to do here, say N.
  457. config NR_CPUS
  458. int "Maximum number of CPUs (2-32)"
  459. range 2 32
  460. depends on SMP
  461. default "4" if CPU_SHX3
  462. default "2"
  463. help
  464. This allows you to specify the maximum number of CPUs which this
  465. kernel will support. The maximum supported value is 32 and the
  466. minimum value which makes sense is 2.
  467. This is purely to save memory - each supported CPU adds
  468. approximately eight kilobytes to the kernel image.
  469. source "kernel/Kconfig.preempt"
  470. config GUSA
  471. def_bool y
  472. depends on !SMP && SUPERH32
  473. help
  474. This enables support for gUSA (general UserSpace Atomicity).
  475. This is the default implementation for both UP and non-ll/sc
  476. CPUs, and is used by the libc, amongst others.
  477. For additional information, design information can be found
  478. in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
  479. This should only be disabled for special cases where alternate
  480. atomicity implementations exist.
  481. config GUSA_RB
  482. bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
  483. depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
  484. help
  485. Enabling this option will allow the kernel to implement some
  486. atomic operations using a software implemention of load-locked/
  487. store-conditional (LLSC). On machines which do not have hardware
  488. LLSC, this should be more efficient than the other alternative of
  489. disabling insterrupts around the atomic sequence.
  490. endmenu
  491. menu "Boot options"
  492. config ZERO_PAGE_OFFSET
  493. hex "Zero page offset"
  494. default "0x00004000" if SH_SH03
  495. default "0x00010000" if PAGE_SIZE_64KB
  496. default "0x00002000" if PAGE_SIZE_8KB
  497. default "0x00001000"
  498. help
  499. This sets the default offset of zero page.
  500. config BOOT_LINK_OFFSET
  501. hex "Link address offset for booting"
  502. default "0x00800000"
  503. help
  504. This option allows you to set the link address offset of the zImage.
  505. This can be useful if you are on a board which has a small amount of
  506. memory.
  507. config UBC_WAKEUP
  508. bool "Wakeup UBC on startup"
  509. depends on CPU_SH4 && !CPU_SH4A
  510. help
  511. Selecting this option will wakeup the User Break Controller (UBC) on
  512. startup. Although the UBC is left in an awake state when the processor
  513. comes up, some boot loaders misbehave by putting the UBC to sleep in a
  514. power saving state, which causes issues with things like ptrace().
  515. If unsure, say N.
  516. config CMDLINE_BOOL
  517. bool "Default bootloader kernel arguments"
  518. config CMDLINE
  519. string "Initial kernel command string"
  520. depends on CMDLINE_BOOL
  521. default "console=ttySC1,115200"
  522. endmenu
  523. menu "Bus options"
  524. config SUPERHYWAY
  525. tristate "SuperHyway Bus support"
  526. depends on CPU_SUBTYPE_SH4_202
  527. config MAPLE
  528. bool "Maple Bus support"
  529. depends on SH_DREAMCAST
  530. help
  531. The Maple Bus is SEGA's serial communication bus for peripherals
  532. on the Dreamcast. Without this bus support you won't be able to
  533. get your Dreamcast keyboard etc to work, so most users
  534. probably want to say 'Y' here, unless you are only using the
  535. Dreamcast with a serial line terminal or a remote network
  536. connection.
  537. source "arch/sh/drivers/pci/Kconfig"
  538. source "drivers/pci/pcie/Kconfig"
  539. source "drivers/pci/Kconfig"
  540. source "drivers/pcmcia/Kconfig"
  541. source "drivers/pci/hotplug/Kconfig"
  542. endmenu
  543. menu "Executable file formats"
  544. source "fs/Kconfig.binfmt"
  545. endmenu
  546. menu "Power management options (EXPERIMENTAL)"
  547. depends on EXPERIMENTAL
  548. source "kernel/power/Kconfig"
  549. source "drivers/cpuidle/Kconfig"
  550. endmenu
  551. source "net/Kconfig"
  552. source "drivers/Kconfig"
  553. source "fs/Kconfig"
  554. source "arch/sh/Kconfig.debug"
  555. source "security/Kconfig"
  556. source "crypto/Kconfig"
  557. source "lib/Kconfig"